EP0502867A1 - Process and device for the measurement of distances in gases and liquids using ultrasonics. - Google Patents
Process and device for the measurement of distances in gases and liquids using ultrasonics.Info
- Publication number
- EP0502867A1 EP0502867A1 EP90916697A EP90916697A EP0502867A1 EP 0502867 A1 EP0502867 A1 EP 0502867A1 EP 90916697 A EP90916697 A EP 90916697A EP 90916697 A EP90916697 A EP 90916697A EP 0502867 A1 EP0502867 A1 EP 0502867A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- distance
- sound
- auxiliary
- auxiliary reflector
- measurement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
Dans le procédé pour la mesure de distance dans les gaz et les liquides par ultrasons, une impulsion sonore est engendrée dans un capteur (20) et dirigée sur un objet réfléchissant (24) ainsi que sur un réflecteur auxiliaire (p. ex. 30), et la distance de l'objet est déterminée par la durée du parcours du son. Afin d'augmenter la précision de mesure, un deuxième réflecteur auxiliaire (32) est disposé à une distance R prédéterminée et connue par rapport au premier réflecteur auxiliaire (30), l'intervalle t2 moins t1 des réflections des deux réflecteurs auxiliaires (30, 32) est saisi, et sur cette base est déterminée la vitesse du son v au moyen de la distance géométrique R connue. La valeur ainsi obtenue de la vitesse du son v est utilisée pour le calcul de la distance de l'objet.In the method for distance measurement in gases and liquids by ultrasound, a sound pulse is generated in a sensor (20) and directed at a reflecting object (24) as well as at an auxiliary reflector (eg 30). , and the distance to the object is determined by the length of time the sound travels. In order to increase the measurement accuracy, a second auxiliary reflector (32) is arranged at a predetermined and known distance R from the first auxiliary reflector (30), the interval t2 minus t1 of the reflections of the two auxiliary reflectors (30, 32) is entered, and on this basis is determined the speed of sound v by means of the known geometric distance R. The resulting value of the speed of sound v is used to calculate the distance to the object.
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT90916697T ATE104047T1 (en) | 1989-11-28 | 1990-11-26 | METHOD AND DEVICE FOR DISTANCE MEASUREMENT IN GASES AND LIQUIDS USING ULTRASONIC. |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3939328A DE3939328A1 (en) | 1989-11-28 | 1989-11-28 | METHOD AND DEVICE FOR MEASURING DISTANCE IN GASES AND LIQUIDS BY MEANS OF ULTRASOUND |
DE3939328 | 1989-11-28 | ||
PCT/DE1990/000910 WO1991008440A1 (en) | 1989-11-28 | 1990-11-26 | Process and device for the measurement of distances in gases and liquids using ultrasonics |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0502867A1 true EP0502867A1 (en) | 1992-09-16 |
EP0502867B1 EP0502867B1 (en) | 1994-04-06 |
Family
ID=6394350
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90916697A Expired - Lifetime EP0502867B1 (en) | 1989-11-28 | 1990-11-26 | Process and device for the measurement of distances in gases and liquids using ultrasonics |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0502867B1 (en) |
JP (1) | JPH05501607A (en) |
AU (1) | AU6723690A (en) |
CA (1) | CA2069506A1 (en) |
DE (2) | DE3939328A1 (en) |
WO (1) | WO1991008440A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101008674B (en) * | 2006-01-24 | 2010-05-12 | 河海大学常州校区 | Device for testing axial displacement of hydroelectric generating set and working method therefor |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3048284B2 (en) * | 1993-02-03 | 2000-06-05 | 東京瓦斯株式会社 | Sound velocity calibration device for acoustic pipe length measurement system |
DE10142364A1 (en) * | 2001-08-30 | 2003-04-03 | Advanced Acoustix Gmbh | Determination of the distance to a soft sound object, whereby measurements are made at two or more different frequencies so that a material dependent phase correction can be made |
DE50305421D1 (en) * | 2003-06-23 | 2006-11-30 | Zumbach Electronic Ag | Apparatus and method for calibration and ultrasonic measurement of cylindrical test samples |
DE102008048307A1 (en) * | 2008-07-09 | 2010-01-21 | Moba-Mobile Automation Ag | Device and method for determining an extension length of an extendable machine part |
CN103544861A (en) * | 2012-07-11 | 2014-01-29 | 山东科大微机应用研究所有限公司 | Field operation examination mechanism and field operation examination method |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2056886B1 (en) * | 1969-07-24 | 1973-08-10 | Realisations Ultrasoniques Sa | |
ATE34838T1 (en) * | 1980-03-20 | 1988-06-15 | Acumet Precision Instr Ltd | METHOD AND APPARATUS FOR DETERMINING PHYSICAL QUANTITIES, IN PARTICULAR LENGTH-RELATED QUANTITIES. |
DE3304520A1 (en) * | 1983-02-10 | 1984-08-16 | Gebhard Balluff Fabrik feinmechanischer Erzeugnisse GmbH & Co, 7303 Neuhausen | ULTRASONIC GAUGE |
DE3608384A1 (en) * | 1986-03-13 | 1987-09-17 | F & O Electronic Systems | Method for measuring displacements, in particular for the absolute measurement of short displacements, via the propagation time of pulses in a material support medium, and associated device for carrying out the method |
DE3621819C2 (en) * | 1986-06-28 | 1995-05-18 | Mpv Mes Und Prueftechnik Vogt | Method and device for measuring airborne sound |
-
1989
- 1989-11-28 DE DE3939328A patent/DE3939328A1/en not_active Withdrawn
-
1990
- 1990-11-26 AU AU67236/90A patent/AU6723690A/en not_active Abandoned
- 1990-11-26 EP EP90916697A patent/EP0502867B1/en not_active Expired - Lifetime
- 1990-11-26 DE DE90916697T patent/DE59005295D1/en not_active Expired - Fee Related
- 1990-11-26 JP JP2515316A patent/JPH05501607A/en active Pending
- 1990-11-26 WO PCT/DE1990/000910 patent/WO1991008440A1/en active IP Right Grant
- 1990-11-26 CA CA002069506A patent/CA2069506A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO9108440A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101008674B (en) * | 2006-01-24 | 2010-05-12 | 河海大学常州校区 | Device for testing axial displacement of hydroelectric generating set and working method therefor |
Also Published As
Publication number | Publication date |
---|---|
AU6723690A (en) | 1991-06-26 |
JPH05501607A (en) | 1993-03-25 |
DE59005295D1 (en) | 1994-05-11 |
DE3939328A1 (en) | 1991-08-29 |
EP0502867B1 (en) | 1994-04-06 |
CA2069506A1 (en) | 1991-05-29 |
WO1991008440A1 (en) | 1991-06-13 |
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